An Introduction to Modern Astrophysics · Problem 6.5

Binary Systems and Stellar Parameters — Carroll & Ostlie

Physics — Astrophysics · angular-magnification-telescope

Problem

Prove that the angular magnification of a telescope having an objective focal length of

f_{\mathrm{obj}}

and an eyepiece focal length of

f_{\mathrm{eye}}

is given by Eq. (6.9) when the objective and the eyepiece are separated by the sum of their focal lengths,

f_{\mathrm{obj}} + f_{\mathrm{eye}}